/*
 * Copyright 2011-2013, by Vladimir Kostyukov and Contributors.
 * 
 * This file is part of la4j project (http://la4j.org)
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * You may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 * Contributor(s): -
 * 
 */

package org.la4j.vector.source;

import java.io.IOException;

import org.la4j.io.VectorStream;
import org.la4j.vector.Vector;

@Deprecated
public class StreamVectorSource implements VectorSource {

    private Vector vector;
    private IOException exception;

    public StreamVectorSource(VectorStream stream) {
        try {
            this.vector = stream.readVector();
        } catch (IOException exception) {
            this.exception = exception;
        }
    }

    @Override
    public double get(int i) {
        if (vector != null) {
            return vector.get(i);
        }

        throw new IllegalStateException(exception);
    }

    @Override
    public int length() {
        if (vector != null) {
            return vector.length();
        }

        throw new IllegalStateException(exception);
    }
}
